The more massive an atom is, the larger the nucleus and the more electrons are spinning around it.
In the nucleus of the atom, protons and neutrons therein each add 1 atomic mass unit.
No, an atom of aluminum and an atom of gallium do not have the same atomic mass. Aluminum has an atomic mass of approximately 26.98 atomic mass units, while gallium has an atomic mass of approximately 69.72 atomic mass units.
The atomic number tells how many protons are in the atom, and the atomic mass tells how many neutrons and protons are in the atom together. Like Oxygen has an atomic number of 8. It also has 8 protons. It's atomic mass is 16. It also has 16 neutrons and protons. Helium's atomic number is 1. It only has 1 proton. It's atomic mass is 1 because it doesn't have any neutrons.
Proton + Nuetron = Atomic Mass
The atomic mass of an atom is the combined mass of the protons and neutrons in the nucleus.
The number of neutrons in an atom can affect the atomic mass of an atom.
The atomic weight of the element (syn.: mass number).
Atomic mass
The Hydrogen atom. Beware, Hydrogen has an atomic mass based on one proton, as it doesn't have a neutron. So Helium has a mass of four times Hydrogen.
Atomic Mass represents the mass of atom. We use mass of protons and neutrons.
The atomic mass of an oxygen atom depends on which isotope of oxygen you are referring to. The AVERAGE atomic mass is approximately 15.9994
The atomic mass of an atom is the mass of 6.011 X 10^23 atoms of that element.